54645421205 has 8 divisors (see below), whose sum is σ = 65576882232. Its totient is φ = 43714752448.

The previous prime is 54645421183. The next prime is 54645421277. The reversal of 54645421205 is 50212454645.

It can be written as a sum of positive squares in 4 ways, for example, as 773618596 + 53871802609 = 27814^2 + 232103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54645421205 - 2²⁸ = 54376985749 is a prime.

It is a super-2 number, since 2×54645421205² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33962 + ... + 332331.

It is an arithmetic number, because the mean of its divisors is an integer number (8197110279).

Almost surely, 2^54645421205 is an apocalyptic number.

It is an amenable number.

54645421205 is a deficient number, since it is larger than the sum of its proper divisors (10931461027).

54645421205 is a wasteful number, since it uses less digits than its factorization.

54645421205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396135.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 54645421205 in words is "fifty-four billion, six hundred forty-five million, four hundred twenty-one thousand, two hundred five".